package com.atguigu.common.valid;

import org.springframework.context.MessageSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.support.ResourceBundleMessageSource;
import org.springframework.util.StringUtils;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.HashSet;
import java.util.Set;

public class ListValueConstraintValidator implements ConstraintValidator<ListValue,Integer> {

    private Set<Integer> set = new HashSet<>();



    //初始化方法
    @Override
    public void initialize(ListValue constraintAnnotation) {
        int[] vals = constraintAnnotation.vals();
        if(!StringUtils.isEmpty(vals)){
            for (int val : vals) {
                set.add(val);
            }
        }

    }

    //判断是否校验成功

    /**
     *
     * @param value : 我们需要校验的值,比如你写了一个@ListValue(vals = {0,1})后,你在添加品
     *              牌时写了一个"showStatus": 4,那么此时的value就是4
     * @param context
     * @return
     */
    @Override
    public boolean isValid(Integer value, ConstraintValidatorContext context) {
        if(set.contains(value)){
            return true;
        }
        return false;
    }
}
